This proposal provides semantics for numeric literals.
* Numeric literals have a type derived from their value, and can be converted to any type that can represent that value.
* Simple operations such as arithmetic that involve only literals also produce values of literal types.
* Literals implicitly convert to types that can represent them.
* The Carbon prelude provides:
* An arbitrary-precision integer type `BigInt`.
* A rational number type `Rational(T:! Type)` with constraints on `T` not yet determined.
* A family of integer literal types, `IntLiteral(N:! BigInt)`.
* A family of real literal types, `RealLiteral(N:! Rational(BigInt))`.
Co-authored-by: Chandler Carruth <chandlerc@gmail.com>
Co-authored-by: Jon Meow <46229924+jonmeow@users.noreply.github.com>
Jon Meow
